Factors Affecting Conception Rate of Dairy Cows Following Artificial Insemination in Selected Area at Sirajgonj District of Bangladesh

Abstract

Conception Rate (CR) plays a major role to achieve a successful dairy farm. The present study was aimed to observe the conception rate of dairy cattle following artificial insemination (AI) in Sirajgonj district of Bangladesh. A total of 543 non descriptive indigenous and 317 crossbred cows were collected through face to face questionnaires with the farmers considering the breed, age, parity, retention of placenta, insemination after onset of estrous, calving interval and days open as potential risk factors affecting CR of cows. The collected data were analyzed by using SPSS software. The mean conception rate was 72 percent following AI. Cross breed cows (co-eff.= -0.003, p<0.05), removal of placenta >6 hours (co-eff. = -0.17, p<0.05), days open (co-eff.= -.001, p<0.01) were identified as the risk factors for low CR after AI. Age of cow <2.5 years (co-eff.= 0.005, p>0.005), parity>5, (co-eff. = 0.210, p>0.05), Insemination after onset of estrous <3 hours (co-eff. = 0.008, p>0.05), calving interval >551(co-eff.= 0.00, p>0.05) were associated with the risk for lower CR following AI. Therefore, it could be stated that conception rate depends on various factors.

Effects of semen quality on pregnancy rate in artificially inseminated dairy cows

“…The result supports the report of Shamsuddin et al (2001) and Haque et al (2015), who found 54.3% -57.9% pregnancy rate. The pregnancy rate is higher than the findings of Kamal et al (2013); Mahmoud et al (2013) but lower than those of Howlader et al (2019) and Khatun et al (2014). The factors affecting the pregnancy rate of inseminated cows are depicted in Table 7.…”

The role of inseminators in the success of pregnancy outcome in Bali Cattle

“…The proper deposition of healthy spermatozoa on the reproductive track at the proper period of estrus is one of the elements that determine how effective insemination is. It has been determined that the rate of conception is strongly influenced by the inseminator's skill in carrying out the AI process in Brazil [3] and Bangladesh [4]. According to Sahin et al [5], inseminators had a 41.36% impact on conception rates in Turkey.…”